Toy writing slate



FIG. 1 is a front elevational view of a toy writing slate showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a rear elevational view thereof shown on an enlarged scale;

FIG. 4 is a right side elevational view thereof, the side opposite being substantially a mirror image; and

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a toy writing slate, as shown and described. 